Budiono Budiono
University of Muhammadiyah Malang

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Water Turbine Simulation using Autodesk Simulation CFD Suwarsono Suwarsono; Budiono Budiono
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 2 No. 2 (2017)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v2i2.5111

Abstract

The need on electricity increases annually while its supply decreases, meanwhile power plant has not increased. Process of building microhydro power plant needs scientifically experience and more time to give suitable result as it designed. Sengkaling Cross-flow Microhydro power plant resulted inappropriate electricity power compare with designed power plant. The design is mostly not in accordance with planned calculation. It is caused by the engineer who is not considering surrounding condition. Therefore, simulation is very important to be conducted that it only needs short time to the design maximally arranged. By simulation, building and assembling process can be conducted faster and decreases error risks. Simulation for this research used AUTODESK SIMULATION CFD.
Analysis of a friction buffer stop as an enhancement of safety systems on railway testing tracks Andinusa Rahmandhika; Muhammad Choirul Insan; Budiono Budiono; Ali Mokhtar; Karisma Rizal
Journal of Energy, Mechanical, Material, and Manufacturing Engineering Vol. 11 No. 1 (2026)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v10i2.44701

Abstract

The use of safety equipment in the railway sector is crucial, particularly when navigation system failures occur. One such aid used when a train fails to stop is the buffer stop. Friction buffer stops are a type of buffer stop that can absorb large amounts of kinetic energy, enabling efficient and safe deceleration. Although it has been widely implemented in railway systems, few studies have evaluated its energy absorption capability and deceleration characteristics specifically on railway test tracks. This study aims to evaluate the absorption of kinetic energy by the buffer stop during train collisions and ensure the deceleration rate meets the standard of ≤ 2.5 m/s². This study used an analytical calculation method based on friction buffer stop design equations, ISO 898-1 bolt standards, and kinetic energy-deceleration analysis. The results of the study show the relationship between kinetic energy, deceleration rate, and braking distance, as well as the influence of bolt size and material grade on the friction force in the braking jaws. The deceleration rate meets the requirements; the braking distance is ≤ 11 meters, and the kinetic energy is well absorbed by the buffer stops.